#ifndef _COMM_HPP_
#define _COMM_HPP_

#include <iostream>
#include <string>
#include <cstdlib>
#include <cstring>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "log.hpp"

using namespace std;

Log log;

const int size = 4060;
const string pathname = "/home/lili";
const int proj_id = 0x6666;

key_t Getkey()
{
    key_t k = ftok(pathname.c_str(),proj_id);
    if(k<0)
    {
        log(Fatal,"ftok error: %s",strerror(errno));
        exit(1);
    }
    log(Info,"ftok success,key is : 0x%x", k);
    return k;
}

int GetShareMemHelper(int flag)
{
    key_t k = Getkey();
    int shmid = shmget(k,size,flag);
    if(shmid < 0)
    {
        log(Fatal,"create share memory error: %s",strerror(errno));
        exit(2);
    }
    log(Info,"create share memory success, shmid: %d",shmid);
    return shmid;
}

int CreateShm()
{
    return GetShareMemHelper(IPC_CREAT | IPC_EXCL |0666);
}

int GetShm()
{
    return GetShareMemHelper(IPC_CREAT);
}

#define FIFO_FILE "./myfifo"
#define MODE 0664

enum
{
    FIFO_CREATE_ERR = 1,
    FIFO_DELETE_ERR,
    FIFO_OPEN_ERR
};

class Init
{
public:
    Init()
    {
        int n = mkfifo(FIFO_FILE,MODE);
        if(n == -1)
        {
            perror("mkfifo");
            exit(FIFO_CREATE_ERR);
        }
    }
    ~Init()
    {
        int m = unlink(FIFO_FILE);
        if (m == -1)
        {
            perror("unlink");
            exit(FIFO_DELETE_ERR);
        }
    }
 
};

#endif
 